If you could bring back 1 character from the dead, who would it be?

There are so many good characters that have died in WoW so far. I'd definitely bring back Tichondrius, since Dreadlords are my favorite beings in all Warcraft and he is the greatest among them. Who knows, given that Dreadlords are so hard to kill, he's probably alive and well in the Twisting Nether. I don't buy that Illidan killed him.